linux.git/drivers/video/fbdev/geode, branch v6.18.21

x86/msr: Add explicit includes of

2025-05-02T08:23:47+00:00

For historic reasons there are some TSC-related functions in the
 header, even though there's an  header.

To facilitate the relocation of rdtsc{,_ordered}() from 
to  and to eventually eliminate the inclusion of
 in , add an explicit  dependency
to the source files that reference definitions from .

[ mingo: Clarified the changelog. ]

Signed-off-by: Xin Li (Intel) 
Signed-off-by: Ingo Molnar 
Acked-by: Dave Hansen 
Acked-by: Peter Zijlstra (Intel) 
Acked-by: Ilpo Järvinen 
Cc: Andy Lutomirski 
Cc: Brian Gerst 
Cc: Juergen Gross 
Cc: H. Peter Anvin 
Cc: Linus Torvalds 
Cc: Kees Cook 
Cc: Peter Zijlstra 
Cc: Borislav Petkov 
Cc: Thomas Gleixner 
Cc: Josh Poimboeuf 
Cc: Uros Bizjak 
Link: https://lore.kernel.org/r/20250501054241.1245648-1-xin@zytor.com

x86/msr: Rename 'wrmsrl()' to 'wrmsrq()'

2025-04-10T09:58:33+00:00

Suggested-by: "H. Peter Anvin" 
Signed-off-by: Ingo Molnar 
Acked-by: Peter Zijlstra (Intel) 
Cc: Juergen Gross 
Cc: Dave Hansen 
Cc: Xin Li 
Cc: Linus Torvalds

x86/msr: Rename 'rdmsrl()' to 'rdmsrq()'

2025-04-10T09:58:27+00:00

Suggested-by: "H. Peter Anvin" 
Signed-off-by: Ingo Molnar 
Acked-by: Peter Zijlstra (Intel) 
Cc: Juergen Gross 
Cc: Dave Hansen 
Cc: Xin Li 
Cc: Linus Torvalds

video/nomodeset: Select nomodeset= parameter with CONFIG_VIDEO

2024-01-23T09:11:38+00:00

Enable support for nomodeset= parameter via CONFIG_VIDEO. Both,
DRM and fbdev, already select this option. Remove the existing
option CONFIG_VIDEO_NOMODESET. Simplifies the Kconfig rules.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-4-tzimmermann@suse.de

fbdev/geode/lxfb: Use fbdev I/O helpers

2023-08-04T13:54:35+00:00

Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer
for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions.
Select the correct modules with Kconfig's FB_IOMEM_HELPERS token.

The macro and token set the currently selected values, so there is
no functional change.

v3:
	* use _IOMEM_ in commit message
v2:
	* updated to use _IOMEM_ tokens

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Acked-by: Helge Deller 
Cc: Andres Salomon 
Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-16-tzimmermann@suse.de

fbdev/geode/gxfb: Use fbdev I/O helpers

2023-08-04T13:54:35+00:00

Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer
for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions.
Select the correct modules with Kconfig's FB_IOMEM_HELPERS token.

The macro and token set the currently selected values, so there is
no functional change.

v3:
	* use _IOMEM_ in commit message
v2:
	* updated to use _IOMEM_ tokens

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Acked-by: Helge Deller 
Cc: Andres Salomon 
Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-15-tzimmermann@suse.de

fbdev/geode/gx1fb: Use fbdev I/O helpers

2023-08-04T13:54:35+00:00

Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer
for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions.
Select the correct modules with Kconfig's FB_IOMEM_HELPERS token.

The macro and token set the currently selected values, so there is
no functional change.

v3:
	* use _IOMEM_ in commit message
v2:
	* updated to use _IOMEM_ tokens

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Acked-by: Helge Deller 
Cc: Andres Salomon 
Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-14-tzimmermann@suse.de

fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs

2023-07-24T14:50:38+00:00

The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v4:
	* clarify commit message (Geert, Dan)
v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Cc: Helge Deller 
Cc: Nicolas Ferre 
Cc: Benjamin Herrenschmidt 
Cc: Ferenc Bakonyi 
Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Wei Liu 
Cc: Dexuan Cui 
Cc: Antonino Daplas 
Cc: Maik Broemme 
Cc: Michael Ellerman 
Cc: Nicholas Piggin 
Cc: Christophe Leroy 
Cc: Kristoffer Ericson 
Cc: Hans de Goede 
Cc: Steve Glendinning 
Cc: Bernie Thompson 
Cc: Florian Tobias Schandinat 
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-6-tzimmermann@suse.de

fbdev: lxfb: Fix potential divide by zero

2023-03-16T15:18:17+00:00

var->pixclock can be assigned to zero by user. Without proper
check, divide by zero would occur in lx_set_clock.

Error out if var->pixclock is zero.

Signed-off-by: Wei Chen 
Signed-off-by: Helge Deller

fbdev: geode: don't build on UML

2022-12-14T19:01:51+00:00

The geode fbdev driver uses struct cpuinfo fields that are not present
on ARCH=um, so don't allow this driver to be built on UML.

Prevents these build errors:

In file included from ../arch/x86/include/asm/olpc.h:7:0,
                 from ../drivers/mfd/cs5535-mfd.c:17:
../arch/x86/include/asm/geode.h: In function ‘is_geode_gx’:
../arch/x86/include/asm/geode.h:16:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’
  return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
../arch/x86/include/asm/geode.h:16:39: error: ‘X86_VENDOR_NSC’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
  return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
../arch/x86/include/asm/geode.h:17:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’
   (boot_cpu_data.x86 == 5) &&
../arch/x86/include/asm/geode.h:18:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’
   (boot_cpu_data.x86_model == 5));
../arch/x86/include/asm/geode.h: In function ‘is_geode_lx’:
../arch/x86/include/asm/geode.h:23:24: error: ‘struct cpuinfo_um’ has no member named ‘x86_vendor’
  return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
../arch/x86/include/asm/geode.h:23:39: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
  return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
../arch/x86/include/asm/geode.h:24:17: error: ‘struct cpuinfo_um’ has no member named ‘x86’
   (boot_cpu_data.x86 == 5) &&
../arch/x86/include/asm/geode.h:25:17: error: ‘struct cpuinfo_um’ has no member named ‘x86_model’
   (boot_cpu_data.x86_model == 10));

Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap 
Cc: Johannes Berg 
Cc: Richard Weinberger 
Cc: linux-um@lists.infradead.org
Cc: Daniel Vetter 
Cc: Helge Deller 
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Andres Salomon 
Cc: linux-geode@lists.infradead.org
Signed-off-by: Helge Deller